The Mudumalai Wildlife Sanctuary & National Park is situated at the tri-junction of Tamil Nadu, Kerala and Karnataka on the North Eastern Slopes of the Nilgiris. An erstwhile game reserve, Mudumalai was declared a wildlife sanctuary in the early 1940 by the then Madras Presidency.
With Bandipur Tiger Reserve (Karnataka) in the north, and Wynad Wildlife Sanctuary (Kerala) in the west the region forms a single, continuous viable habitat for a varied range of wildlife and is a part of the Nilgiri Biosphere Reserve. While Mudumalai’s western half receives the southwest monsoon, the eastern tracts receive the relatively gentler north-east monsoon which results in a diversity of vegetation and typical migration of herbivores.